The penetration, diffusion and energy deposition of high-energy photon

Zheng Ming Luo, Cheng Jun Gou, Laub Wolfram

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


This paper presents a new theory for calculating the transport of high-energy photons and their secondary charged particles. We call this new algorithm characteristic line method, which is completely analytic. Using this new method we cannot only accurately calculate the transport behaviour of energetic photons, but also precisely describes the transport behaviour and energy deposition of secondary electrons, photoelectrons, Compton recoil electrons and positron-electron pairs. Its calculation efficiency is much higher than that of the Monte Carlo method. The theory can be directly applied to layered media situation and obtain a pencil-beam-modelled solution. Therefore, it may be applied to clinical applications for radiation therapy.

Original languageEnglish (US)
Pages (from-to)803-808
Number of pages6
JournalChinese Physics
Issue number7
StatePublished - Dec 1 2003


  • Characteristic line method
  • Energy deposition
  • High-energy photon

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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